论文标题
与Redfield Dynamics的本地一代纠缠
Local generation of entanglement with Redfield dynamics
论文作者
论文摘要
在现象学应用中，尽管具有非阳性的保留特征，但Bloch-Redfield类型的时间演变被广泛用于建模开放系统动力学：这种物理上的不一致通常在很小的时候出现，通常可以通过适当限制允许的初始状态的空间来固化。然而，与纠缠有关的其他问题可能会出现：具体来说，我们表明，红菲尔德动态可以通过纯粹的局部行动产生纠缠，而这种非物理效应可以在有限的时间内持续存在。
In phenomenological applications, time evolutions of Bloch-Redfield type are widely adopted for modelling open system dynamics, despite their non-positive preserving character: this physical inconsistency, that in general shows up at small times, is usually cured by suitably restricting the space of allowed initial states. Nevertheless, additional problems may arise in relation to entanglement: specifically, we show that Redfield dynamics can generate entanglement through a purely local action, and this unphysical effect can persist for finite times.
